Latest round of accusations to dog 7-time Tour de France winner

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Seven-time Tour de France champ Lance Armstrong used a performance enhancing drug, according to a former teammate.

Updated at 2:19 PM PST on Friday, May 20, 2011

A former teammate of Lance Armstrong says the seven-time Tour de France winner used performance-enhancing drugs.

Tyler Hamilton told CBS' "60 Minutes" Armstrong took a blood-booster called EPO in the 1999 Tour and before the race in 2000 and 2001. Doping allegations have dogged Armstrong for years, but the legendary cyclist has always denied the charges. Hamilton gave back his 2004 Olympic gold medal after making the revelation.

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"I saw (EPO) in his refrigerator. ... I saw him inject it more than one time," Hamilton said, "like we all did. Like I did, many, many times.

"(Armstrong) took what we all took ... the majority of the peloton," referring to riders in the race. "There was EPO ... testosterone ... a blood transfusion."

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EPO is a drug that boosts endurance by increasing the number of red blood cells in the body.

Earlier this year, a report alleged Armstrong has maintained ties to Michele Ferrari, an Italian doctor who has long been linked to helping elite cyclists cheat, despite publicly severing ties with her in 2004.

Another of Armstrong's former teammates, Floyd Landis, who was stripped of his 2006 Tour de France win after testing positive for a banned supplement, said that in 2003 Swiss customs officials found drugs and syringes in Armstrong's luggage, but failed to stop him.

Mark Fabiani, a spokesman for Armstrong, said the article was "old news from the same old discredited sources."